Pengaruh Variasi Waktu Penahanan Proses Kalsinasi Terhadap Prekursor Bahan Katoda Lithium Ferrophospate (LFP)

Efhana, Dessy Putri (2014) Pengaruh Variasi Waktu Penahanan Proses Kalsinasi Terhadap Prekursor Bahan Katoda Lithium Ferrophospate (LFP). Other thesis, Insititut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini telah dibuat partikel bahan katoda Lithium Ferrophospate (LFP) dengan variasi waktu penahanan 8, 10, 12 dan 15 jam pada proses kalsinasi 700 °C. Bahan dasar yang digunakan dalam penelitian ini adalah FeCl3.6H2O, (NH4)2HPO4, dan Li2CO3. Pembuatan bahan LFP ini dilakukan dengan menggunakan metode kopresipitasi dan solid state reaction. Karakterisasi dilakukan dengan menggunakan instrumen X-Ray Diffractometer (XRD), Particle Size Analyzer (PSA), Scanning Electron Microscopy (SEM), dan uji konduktivitas (two probe). Analisis hasil pengujian XRD menggunakan perangkat lunak High Score Plus (HSP). Hasil analisis menunjukkan bahwa pada variasi 10 jam terbentuk 2 fasa utama yaitu olivine (LiFePO4) dan Nasicon (Li3Fe2(PO4)3) dengan masing-masing prosentase fasa sebesar 35% dan 56%. Ukuran partikel rata-rata untuk semua variasi berdimensi 1,16 μm dan geometri partikel berbentuk bunga karang silinder. Peningkatan lama waktu penahanan proses kalsinasi menyebabkan kenaikan konsentrasi fase konduktif dan kenaikan konduktivitas listrik dimana pada lama penahanan 12 jam menghasilkan konsentrasi fasa yang terbentuk 90% dengan nilai konduktivitas listrik tertinggi yaitu sebesar 8,69x10-2 S/cm.
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In this research, Lithium Ferrophospate (LFP) cathode materials particles with holding time variations 8, 10, 12 and 15 hours at 700°C calcination process has been made. The basic material used in this study is FeCl3.6H2O, (NH4)2HPO4, and Li2CO3. The making of LFP material was conducted using the coprecipitation and solid state reaction method. The characterization was performed by using X-ray diffractometer instrument (XRD), Particle Size Analyzer (PSA), Scanning Electron Microscopy (SEM), and the conductivity test (two probes). XRD test results was analysed by High Score Plus software (HSP). The analysis showed that the 10-hour variation formed 2 main phases, they are olivine (LiFePO4) and Nasicon (Li3Fe2(PO4)3) with the percentage of each phase is 35% and 56%, respectively. The average particle size for all of the variations have dimension of 1.16 μm and have geometry of cylindrical sponge shaped. The increasing of the length of calcination process holding time causes an increase in the concentration of th e conductive phase and an increase in electrical conductivity where in the holding time of 12 hours resulted 90% phase concentration with the highest electrical conductivity value that is equal to 8,69x10-2 S/cm.

Item Type:	Thesis (Other)
Additional Information:	RSFi 620.118 Efh p
Uncontrolled Keywords:	Katoda, LFP, olivine, Nasicon, XRD, konduktivitas,
Subjects:	T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials
Divisions:	Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	24 Nov 2023 08:25
Last Modified:	24 Nov 2023 08:25
URI:	http://repository.its.ac.id/id/eprint/105204

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